#include <header.h>

int num = 10;
void *run(void *arg){
	printf("run num = %d\n", num);
	num = 20;
	return NULL;
}


int main(int argc, char* argv[]){
	
	pthread_t son_thread_id;
	pthread_create(&son_thread_id, NULL, run, NULL);
	sleep(1);

	printf("main num:%d\n", num);
	return 0;
}